stat_flags.c revision 1.1
1 /* $NetBSD: stat_flags.c,v 1.1 2006/12/14 19:18:01 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #if HAVE_NBTOOL_CONFIG_H 33 #include "nbtool_config.h" 34 #else 35 #define HAVE_STRUCT_STAT_ST_FLAGS 1 36 #endif 37 38 #include <sys/cdefs.h> 39 #if !defined(lint) 40 #if 0 41 static char sccsid[] = "@(#)stat_flags.c 8.2 (Berkeley) 7/28/94"; 42 #else 43 __RCSID("$NetBSD: stat_flags.c,v 1.1 2006/12/14 19:18:01 christos Exp $"); 44 #endif 45 #endif /* not lint */ 46 47 #include <sys/types.h> 48 #include <sys/stat.h> 49 #include <fts.h> 50 #include <stddef.h> 51 #include <string.h> 52 #include <stdlib.h> 53 54 #include "util.h" 55 56 #define SAPPEND(s) do { \ 57 if (prefix != NULL) \ 58 (void)strlcat(string, prefix, sizeof(string)); \ 59 (void)strlcat(string, s, sizeof(string)); \ 60 prefix = ","; \ 61 } while (/* CONSTCOND */ 0) 62 63 /* 64 * flags_to_string -- 65 * Convert stat flags to a comma-separated string. If no flags 66 * are set, return the default string. 67 */ 68 char * 69 flags_to_string(u_long flags, const char *def) 70 { 71 char *string; 72 const char *prefix; 73 if ((string = malloc(128)) == NULL) 74 return NULL; 75 76 string[0] = '\0'; 77 prefix = NULL; 78 #if HAVE_STRUCT_STAT_ST_FLAGS 79 if (flags & UF_APPEND) 80 SAPPEND("uappnd"); 81 if (flags & UF_IMMUTABLE) 82 SAPPEND("uchg"); 83 if (flags & UF_NODUMP) 84 SAPPEND("nodump"); 85 if (flags & UF_OPAQUE) 86 SAPPEND("opaque"); 87 if (flags & SF_APPEND) 88 SAPPEND("sappnd"); 89 if (flags & SF_ARCHIVED) 90 SAPPEND("arch"); 91 if (flags & SF_IMMUTABLE) 92 SAPPEND("schg"); 93 #ifdef SF_SNAPSHOT 94 if (flags & SF_SNAPSHOT) 95 SAPPEND("snap"); 96 #endif 97 #endif 98 if (prefix != NULL) 99 return string; 100 /*###99 [cc] warning: implicit declaration of function 'free'%%%*/ 101 free(string); 102 return strdup(def); 103 } 104 105 #define TEST(a, b, f) { \ 106 if (!strcmp(a, b)) { \ 107 if (clear) { \ 108 if (clrp) \ 109 *clrp |= (f); \ 110 if (setp) \ 111 *setp &= ~(f); \ 112 } else { \ 113 if (setp) \ 114 *setp |= (f); \ 115 if (clrp) \ 116 *clrp &= ~(f); \ 117 } \ 118 break; \ 119 } \ 120 } 121 122 /* 123 * string_to_flags -- 124 * Take string of arguments and return stat flags. Return 0 on 125 * success, 1 on failure. On failure, stringp is set to point 126 * to the offending token. 127 */ 128 int 129 string_to_flags(char **stringp, u_long *setp, u_long *clrp) 130 { 131 int clear; 132 char *string, *p; 133 134 if (setp) 135 *setp = 0; 136 if (clrp) 137 *clrp = 0; 138 139 #if HAVE_STRUCT_STAT_ST_FLAGS 140 string = *stringp; 141 while ((p = strsep(&string, "\t ,")) != NULL) { 142 clear = 0; 143 *stringp = p; 144 if (*p == '\0') 145 continue; 146 if (p[0] == 'n' && p[1] == 'o') { 147 clear = 1; 148 p += 2; 149 } 150 switch (p[0]) { 151 case 'a': 152 TEST(p, "arch", SF_ARCHIVED); 153 TEST(p, "archived", SF_ARCHIVED); 154 return (1); 155 case 'd': 156 clear = !clear; 157 TEST(p, "dump", UF_NODUMP); 158 return (1); 159 case 'n': 160 /* 161 * Support `nonodump'. Note that 162 * the state of clear is not changed. 163 */ 164 TEST(p, "nodump", UF_NODUMP); 165 return (1); 166 case 'o': 167 TEST(p, "opaque", UF_OPAQUE); 168 return (1); 169 case 's': 170 TEST(p, "sappnd", SF_APPEND); 171 TEST(p, "sappend", SF_APPEND); 172 TEST(p, "schg", SF_IMMUTABLE); 173 TEST(p, "schange", SF_IMMUTABLE); 174 TEST(p, "simmutable", SF_IMMUTABLE); 175 return (1); 176 case 'u': 177 TEST(p, "uappnd", UF_APPEND); 178 TEST(p, "uappend", UF_APPEND); 179 TEST(p, "uchg", UF_IMMUTABLE); 180 TEST(p, "uchange", UF_IMMUTABLE); 181 TEST(p, "uimmutable", UF_IMMUTABLE); 182 return (1); 183 default: 184 return (1); 185 } 186 } 187 #endif 188 189 return (0); 190 } 191
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